android 用Http请求网页源代码(get/post形式均已实现)【有截图附完整源码】

核心代码public class HttpActivity extends Activity {       private button mButton1, mButton2;     private textView mTextView1;       public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);         setContentView(R.layout.main);           mButton1 = (Button) findViewById(R.id.myButton1);         mButton2 = (Button) findViewById(R.id.myButton2);         mTextView1 = (TextView) findViewById(R.id.myTextView1);           mButton1.setOnClicklistener(new Button.OnClickListener() {             public void onClick(View v) {                 String uriAPI = "http://www.sina.com";                   Httppost httpRequest = new HttpPost(uriAPI);                 List<NameValuePair> params = new ArrayList<NameValuePair>();                 params.add(new BasicNameValuePair("str", "post string"));                 try {                     httpRequest.setEntity(new URLEncodedFormEntity(params,                             HTTP.UTF_8));                     Httpresponse httpResponse = new DEFAULTHttpClient()                             .execute(httpRequest);                       if (httpResponse.getStatusLine().getStatusCode() == 200) {                           String strResult = EntityUtils.toString(httpResponse                                 .getEntity());                         mTextView1.setText(strResult);                     } else {                         mTextView1.setText("Error Response: "                                   httpResponse.getStatusLine().toString());                     }                 } catch (ClientProtocolException e) {                     mTextView1.setText(e.getMessage().toString());                     e.printStackTrace();                 } catch (IOException e) {                     mTextView1.setText(e.getMessage().toString());                     e.printStackTrace();                 } catch (Exception e) {                     mTextView1.setText(e.getMessage().toString());                     e.printStackTrace();                 }               }         });           mButton2.setOnClickListener(new Button.OnClickListener() {               public void onClick(View v) {                   String uriAPI = "http://www.sina.com";                   HttpGet httpRequest = new HttpGet(uriAPI);                 try {                       HttpResponse httpResponse = new DefaultHttpClient()                             .execute(httpRequest);                       if (httpResponse.getStatusLine().getStatusCode() == 200) {                           String strResult = EntityUtils.toString(httpResponse                                 .getEntity());                           strResult = eregi_replace("(\r\n|\r|\n|\n\r)", "",                                 strResult);                         mTextView1.setText(strResult);                     } else {                         mTextView1.setText("Error Response: "                                   httpResponse.getStatusLine().toString());                     }                 } catch (ClientProtocolException e) {                     mTextView1.setText(e.getMessage().toString());                     e.printStackTrace();                 } catch (IOException e) {                     mTextView1.setText(e.getMessage().toString());                     e.printStackTrace();                 } catch (Exception e) {                     mTextView1.setText(e.getMessage().toString());                     e.printStackTrace();                 }             }         });     }       public String eregi_replace(String strFrom, String strTo, String strTarget) {         String strPattern = "(?i)"   strFrom;         Pattern p = Pattern.compile(strPattern);         matcher m = p.matcher(strTarget);         if (m.find()) {             return strTarget.replaceAll(strFrom, strTo);         } else {             return strTarget;         }     } }